#include <iostream>
#include "Table.h"

// a hack square root calculation using simple operations
double mysqrt(double x)
{
    if (x <= 0) {
        return 0;
    }

    // use the table to help find an initial value
    double result = x;
    if (x >= 1 && x < 10) {
        std::cout << "Use the table to help find an initial value " << std::endl;
        result = sqrtTable[static_cast<int>(x)];
    }

    // do ten iterations
    for (int i = 0; i < 10; ++i) {
        if (result <= 0) {
            result = 0.1;
        }
        double delta = x - (result * result);
        result = result + 0.5 * delta / result;
        std::cout << "Computing sqrt of " << x << " to be " << result << std::endl;
    }

    return result;
}